CVE-2025-68848: amr Cron Manager XSS Vulnerability

CVE-2025-68848 Overview

CVE-2025-68848 is a Reflected Cross-Site Scripting (XSS) vulnerability affecting the WordPress amr-cron-manager plugin developed by anmari. This security flaw stems from improper neutralization of input during web page generation, allowing attackers to inject malicious scripts that execute in the context of a victim's browser session when they interact with a specially crafted URL.

Critical Impact

Attackers can exploit this vulnerability to steal session cookies, hijack user accounts, redirect users to malicious sites, or perform unauthorized actions on behalf of authenticated WordPress administrators.

Affected Products

• WordPress amr-cron-manager plugin versions up to and including 2.3
• WordPress installations with the vulnerable plugin activated
• Sites where administrators access malicious links while authenticated

Discovery Timeline

• 2026-02-20 - CVE-2025-68848 published to NVD
• 2026-02-23 - Last updated in NVD database

Technical Details for CVE-2025-68848

Vulnerability Analysis

This vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation). The amr-cron-manager plugin fails to properly sanitize user-supplied input before reflecting it back to the browser in generated web pages. This allows an attacker to craft malicious URLs containing JavaScript payloads that execute when a victim clicks the link.

The vulnerability requires user interaction, specifically requiring an authenticated WordPress administrator to click a malicious link. When successful exploitation occurs, the injected script runs with the same privileges as the victim user, potentially leading to unauthorized data access, session theft, or administrative action execution.

Root Cause

The root cause of this vulnerability lies in insufficient input validation and output encoding within the amr-cron-manager plugin. User-controllable parameters are reflected in the HTML response without proper sanitization or escaping, enabling the injection of arbitrary JavaScript code. This is a common weakness in WordPress plugins where developers fail to use appropriate escaping functions such as esc_html(), esc_attr(), or wp_kses() before outputting user input.

Attack Vector

The attack vector for this Reflected XSS vulnerability is network-based and requires user interaction. An attacker must craft a malicious URL containing the XSS payload and convince an authenticated WordPress administrator to click the link. This is typically accomplished through social engineering tactics such as phishing emails, malicious forum posts, or compromised websites that redirect victims to the crafted URL.

The vulnerability mechanism involves injecting JavaScript code through unvalidated input parameters. When the victim accesses the malicious URL while logged into their WordPress dashboard, the injected script executes within their browser session, potentially allowing the attacker to perform actions as the authenticated user or exfiltrate sensitive session data.

Detection Methods for CVE-2025-68848

Indicators of Compromise

• Unusual HTTP requests to WordPress admin pages containing suspicious JavaScript code or encoded payloads in URL parameters
• Web server logs showing requests to amr-cron-manager plugin endpoints with anomalous query strings containing script tags or event handlers
• Evidence of session cookie exfiltration attempts in outbound network traffic
• User reports of unexpected behavior after clicking links related to WordPress cron management

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common XSS payloads in URL parameters targeting the amr-cron-manager plugin
• Implement Content Security Policy (CSP) headers to restrict inline script execution and report policy violations
• Enable WordPress audit logging to track administrative actions and identify anomalous activity patterns
• Monitor for suspicious outbound connections from client browsers that may indicate data exfiltration

Monitoring Recommendations

• Configure real-time alerting for WAF rule matches related to XSS attack patterns
• Review web server access logs regularly for requests containing encoded script payloads or JavaScript event handlers
• Monitor for changes to WordPress user accounts, permissions, or site settings that may indicate post-exploitation activity
• Implement browser-based security controls and educate administrators about phishing risks

How to Mitigate CVE-2025-68848

Immediate Actions Required

• Verify if the amr-cron-manager plugin is installed by checking the WordPress plugins directory at wp-content/plugins/amr-cron-manager/
• If the plugin is present and active, deactivate it immediately until a patched version is available
• Review WordPress admin user sessions and force logout any suspicious active sessions
• Audit recent administrative actions for signs of compromise
• Educate WordPress administrators about the risks of clicking untrusted links while logged into the dashboard

Patch Information

As of the published vulnerability data, versions of amr-cron-manager through 2.3 are affected. Site administrators should check for plugin updates through the WordPress dashboard or the official plugin repository. For the latest security information and patch availability, refer to the Patchstack WordPress Vulnerability Report.

Workarounds

• Deactivate and remove the amr-cron-manager plugin if it is not critical to site operations
• Implement a Web Application Firewall (WAF) with XSS protection rules to filter malicious requests
• Configure Content Security Policy headers to prevent inline script execution using directives such as script-src 'self'
• Restrict access to WordPress admin areas by IP address where feasible
• Use browser extensions or security tools that detect and warn about potential XSS attacks

# WordPress plugin deactivation via WP-CLI
wp plugin deactivate amr-cron-manager

# Add Content Security Policy header in .htaccess (Apache)
# Header set Content-Security-Policy "script-src 'self'; object-src 'none';"

# Check installed plugin version
wp plugin get amr-cron-manager --field=version